package cc.jq1024.domain.strategy.service;

import cc.jq1024.domain.strategy.model.entity.RaffleAwardEntity;
import cc.jq1024.domain.strategy.model.entity.RaffleFactorEntity;
import cc.jq1024.domain.strategy.model.entity.StrategyAwardEntity;
import cc.jq1024.domain.strategy.repository.IStrategyRepository;
import cc.jq1024.domain.strategy.service.armory.IStrategyDispatch;
import cc.jq1024.domain.strategy.service.rule.chain.factory.DefaultChainFactory;
import cc.jq1024.domain.strategy.service.rule.tree.factory.DefaultTreeFactory;
import cc.jq1024.types.enums.ResponseCode;
import cc.jq1024.types.exception.AppException;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import java.util.Date;

/**
 * @Author: jia-qiang ljq1024.cc
 * @desc: 抽奖策略抽象类 -》 提供模板，公共流程等
 * @Date: 2024-04-14-13:32
 */
@Slf4j
@AllArgsConstructor
public abstract class AbstractRaffleStrategy implements IRaffleStrategy {

    // 策略仓储服务 -> domain层像一个大厨，仓储层提供米面粮油
    protected final IStrategyRepository repository;
    // 策略调度服务 -> 只负责抽奖处理，通过新增接口的方式，隔离职责，不需要使用方关心或者调用抽奖的初始化
    protected final IStrategyDispatch strategyDispatch;
    // 抽奖的责任链 -> 从抽奖的规则中，解耦出前置规则为责任链处理
    protected final DefaultChainFactory defaultChainFactory;
    // 规则树工厂
    protected final DefaultTreeFactory defaultTreeFactory;

    /**
     * 抽奖
     * @param raffleFactorEntity 抽奖参数
     */
    @Override
    public RaffleAwardEntity preformRaffle(RaffleFactorEntity raffleFactorEntity) {

        // 1. 参数校验
        String userId = raffleFactorEntity.getUserId();
        Long strategyId = raffleFactorEntity.getStrategyId();
        if (null == strategyId || StringUtils.isBlank(userId)) {
            throw new AppException(ResponseCode.ILLEGAL_PARAMETER.getCode(), ResponseCode.ILLEGAL_PARAMETER.getInfo());
        }

        // 2. 责任链抽奖计算【这步拿到的是初步的抽奖ID，之后需要根据ID处理抽奖】注意；黑名单、权重等非默认抽奖的直接返回抽奖结果
        DefaultChainFactory.StrategyAwardVO chainStrategyAwardVO = raffleLogicChain(userId, strategyId);
        log.info("抽奖策略计算-责任链 {} {} {} {}", userId, strategyId, chainStrategyAwardVO.getAwardId(), chainStrategyAwardVO.getLogicModel());
        if (!DefaultChainFactory.LogicModel.RULE_DEFAULT.getCode().equals(chainStrategyAwardVO.getLogicModel())) {
            // 黑名单、权重等非默认抽奖的直接返回抽奖结果 -> 不等于默认规则
            return buildRaffleAwardEntity(strategyId, chainStrategyAwardVO.getAwardId(), chainStrategyAwardVO.getAwardRuleValue());
        }

        // 3. 规则树抽奖过滤【奖品ID，会根据抽奖次数判断、库存判断、兜底兜里返回最终的可获得奖品信息】
        DefaultTreeFactory.StrategyAwardVO treeStrategyAwardVO = raffleLogicTree(userId, strategyId, chainStrategyAwardVO.getAwardId(), raffleFactorEntity.getEndDateTime());
        log.info("抽奖策略计算-规则树 userId:{} strategyId:{} awardId:{} roleValue:{}", userId, strategyId, treeStrategyAwardVO.getAwardId(), treeStrategyAwardVO.getAwardRuleValue());


        log.info("【临时日志】 通过中奖中规则，通过抽奖后规则 发送奖励。awardId: {}", treeStrategyAwardVO.getAwardId());
        return buildRaffleAwardEntity(strategyId, treeStrategyAwardVO.getAwardId(), treeStrategyAwardVO.getAwardRuleValue());
    }

    /** 统一返回，并查询sort */
    private RaffleAwardEntity buildRaffleAwardEntity(Long strategyId, Long awardId, String awardConfig) {
        StrategyAwardEntity strategyAward = repository.queryStrategyAwardEntity(strategyId, awardId);
        return RaffleAwardEntity.builder()
                .awardId(awardId)
                .awardConfig(awardConfig)
                .sort(strategyAward.getSort())
                .awardTitle(strategyAward.getAwardTitle())
                .build();
    }

    /**
     * 抽奖计算，责任链抽象方法
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @return 奖品ID
     */
    public abstract DefaultChainFactory.StrategyAwardVO raffleLogicChain(String userId, Long strategyId);

    /**
     * 抽奖结果过滤，决策树抽象方法
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @param awardId    奖品ID
     * @return 过滤结果【奖品ID，会根据抽奖次数判断、库存判断、兜底兜里返回最终的可获得奖品信息】
     */
    public abstract DefaultTreeFactory.StrategyAwardVO raffleLogicTree(String userId, Long strategyId, Long awardId);

    /**
     * 抽奖结果过滤，决策树抽象方法【结束时间】
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @param awardId    奖品ID
     * @param endDateTime    活动结束时间
     * @return 过滤结果【奖品ID，会根据抽奖次数判断、库存判断、兜底兜里返回最终的可获得奖品信息】
     */
    public abstract DefaultTreeFactory.StrategyAwardVO raffleLogicTree(String userId, Long strategyId, Long awardId, Date endDateTime);

}
